Chris Kirby’s review published on Letterboxd:
A cute little side adventure with our Dragons crew. The short is only about 20 minutes long and is used primarily as an excuse to tell a fun little story about a strange dragon that was not a part of the film.
The short uses a lot of different animation styles and that helps keep it interesting and fun, and probably cheap too. This is pure fluff and only for fans of the film. For me, I love the first film so much that I just want an excuse to spend more time in this world. That is the purpose this serves. Nothing else.
It's not great and it's not bad. It is definitely very mediocre but the world itself is what makes it worth spending 20 minutes. Besides, you already have the DVD of the first film in the player. Why not?